Thermal actuator for opening and closing windows



FIG. 1 is a perspective view of a thermal actuator for opening and closing windows showing our new design;

FIG. 2 is a perspective view thereof in partially open condition;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a rear elevational view thereof; and

FIG. 7 is a front elevational view thereof. 

The ornamental design for a thermal actuator for opening and closing windows, as shown and described. 